(19)

(11)

EP 0 675 855 A1

(12)

(43) Date of publication: 11.10.1995 Bulletin 1995/41 (21) Application number: 94903218.0 (22) Date of filing: 21.12.1993

(51) International Patent Classification (IPC):  B01D 17/ 06( . ) C02F 1/ 00( . ) C02F 1/ 461( . ) C02F 1/ 463( . ) (86) International application number: PCT/SE1993/001097 (87) International publication number: WO 1994/014709 (07.07.1994 Gazette 1994/15)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.12.1992 SE 19920003860 (71) Applicant: SUNDELL, Jan S-671 91 Arvika (SE)	(72) Inventor: SUNDELL, Jan S-671 91 Arvika (SE) (74) Representative: Lundquist, Lars-Olof  L-O Lundquist Patentbyra Box 80 S-651 03 Karlstad S-651 03 Karlstad (SE)